Crabrevenge.com(WARNING: Contains material that may offend) reportedly does not endorse giving "crabs" to people, saying the lice are for "novelty purposes only".

However, it says, "Make that bitch itch. If you want a method of revenge that doesn't involve permanent damage or risk of personal injury or jail time, you have come to the right place," according to CNews.

The website says the company was started "by a group of fellows who happen to know a thing or two about biology and revenge".

CNews said the company based in the British Isles offers three options to choose from when ordering lice:

Green package - One colony that can lay as many as 30 eggs for about $20.

Blue package - Three colonies to share with your friends or freeze a batch or two for about $35.

Red package - A vial of "shampoo resistant F-strain crabs" which can take up to two weeks to kill for about $52.

The website also includes testimonials.

"I never knew revenge could be so sweet," wrote one satisfied customer.

A similar site extists at revengecrabs.com, whose tagline is "watching them itch and burn is half the fun".